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January 30, 2015

January 30, 2015

Posted by **Es** on Thursday, December 27, 2012 at 6:39pm.

The question is which of the following values is in the solution set of inequality 8-7x<-6?

A) -3 B)-2 C)2 D)-6

A if you plug in -3 you get

29<-6 no

B) 8+14<-6 no

c) 8-14<-6 so -6<-6 no

D) 8+42<-6 no

Did I do something wrong or are there no correct answers?

Thank you

- math -
**Ms. Sue**, Thursday, December 27, 2012 at 6:44pm8-7x<-6

-7x < -6 -8

-7x < -14

x = 2

- math -
**Ms. Sue**, Thursday, December 27, 2012 at 7:05pmx can be any number smaller than 2.

http://www.mathsisfun.com/algebra/inequality-solving.html

- math -
**Es**, Thursday, December 27, 2012 at 7:18pmso is there one of the multiple choice questions that are correct, since three numbers in the multiple choice that are less than 2. As you see above

Thank you

- math -
**Ms. Sue**, Thursday, December 27, 2012 at 7:25pmAhh -- but the other solutions are negative number. The answer for c, 2, is the only solution that is positive.

- math -
**Es**, Thursday, December 27, 2012 at 7:26pmI went on the website you showed me. It said when you mult. or divide a neg, like -7x you change the sign, so shouldn't it be that x>2.

I am really confused

- math -
**Es**, Thursday, December 27, 2012 at 8:26pmwhen you check your answer and put 2 in to do a check it comes out

8-7x<-6

8-7(2)

8-14<-6

-6<-6

this is not true unless it was greater than or equal to, that is why I believe there is no correct answer to the question. Isn't that right?

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